Summary:
- Batteries are devices that store chemical energy and convert it into electrical energy. They are used to power many everyday devices like phones, laptops, and cars.
- Batteries work by having two different metals or materials inside that create a chemical reaction when connected. This reaction produces electrons that flow through the battery to power the device.
- There are different types of batteries, including rechargeable batteries that can be used over and over again by recharging them, and single-use batteries that cannot be recharged.